<!DOCTYPE html>
<svg xmlns="http://www.w3.org/2000/svg">
    <animate attributeName="requiredFeatures"/>
    <animate attributeName="requiredExtensions"/>
    <animate attributeName="systemLanguage"/>

    <set attributeName="requiredFeatures"/>
    <set attributeName="requiredExtensions"/>
    <set attributeName="systemLanguage"/>
</svg>
<p>Pass if Blink does not crash.</p>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>